What is Blue Light

“Light blue” is the spectrum of light whose length varies between 380 nm and 500 nm (nanometer). It is disengaged by digital displays as well as by various forms of lighting. Studies suggest that blue light would be harmful to the eyes.

The LED bulbs Thomas Watt of Mes AmpoulesGratuites have been the subject of an appraisal by the company Piséo about the “blue light”. The photobiological risk report is available here . It proves that these LED bulbs belong to the “Zero Risk Group”. Thus, the risk of complications caused by the blue light emitted by the LED bulbs is non-existent. You can therefore be exposed without fear to the light of Thomas Watt LED bulbs.

The dangers of blue light

Eye Hazards

Blue light is the light that disperse most, it is she who is responsible for the dazzling. Since the appearance of LED, many studies have looked at this blue light, its health risks, and more specifically the eyes. The most common pathology is AMD (Age-related Macular Degeneration), which can be accelerated by excessive exposure.

The sun emits blue light at a low and constant level. In contrast, many electronic equipment also emit blue light (including screens). This one, much more powerful, can be potentially dangerous for the eye. This risk is also present in some LED bulbs. It is therefore important to check the technical criteria of your LED bulbs.

Risk for the health

In addition to presenting a risk to the eyes, blue light is potentially dangerous for our health, specifically for our biological rhythm.

Our computer screens, tablets, telephones, televisions, and LED bulbs produce artificial light. This light shows peaks of blue light (HEV: High Visible Energy). We can see this easily, by remaining exposed for too long to these devices, tingling sensations at the level of the eyes, and headaches appear. But in addition to eye fatigue, blue light disrupts our biological rhythm.

Every day, it is the light that sets our biological rhythm. Light, and in particular blue light, causes the secretion of the hormones of “awakening”. Conversely, when the day darkens, the hormones of “sleep” activate. An excessive exposure to the blue light thus breaks this balance and deregulates this rhythm called “Circadian rhythm”. These disorders cause disorders of sleep, mood, even depressions. If you have problems sleeping, avoid exposing yourself to the screens at least 1 hour before sleep.

How to detect the presence of blue light?

Standard NF EN 62 471

The photobiological safety standard NF EN 62 741 proposes a classification in four groups of risks for the eye:

Group 0: presents no photobiological risk

Group 1: low risk

Group 2: moderate risk

Group 3: high risk

Despite this classification, which is still little known to the general public, many installed lights present risks to the eyes and to health. Recent studies also show that the NF EN 62471 standard is not sufficiently adapted to LED lighting. It is not necessarily a proof of the presence of blue light in lighting using LED technology.

Thomas WATT Light Bulb Certifications

Thomas Watt LED bulbs have been evaluated by PISEO, an independent technical center. The PISEO report guarantees the absence of risk for Thomas Watt LED bulbs. Thus, exposure to the LED bulbs distributed by
Our site, presents no health risk. The report is available here.

Gallery

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